Kaelyn is a distinctive girls' name in United States, ranking #1226 in 2021 with 192 recorded births. The name reached its all-time peak in 2009 with 997 births ranking #332. Since 1996, the popularity has decreased by 35.6%. In 2021, approximately 1 in every 8,540 girls born was named Kaelyn. STABLE Recent data shows the name is currently stable.